For me, the debate over morning showers vs evening showers has one clear winner. Evening showers help me unwind and wash away the sleep-disrupting allergens collected during the day. Morning showers just add another step to my pre-work routine. However, there is one drawback to an evening shower: harsh bathroom lighting.Exposure to bright bathroom light bulbs in the evening has been found to shift circadian rhythms about two hours later per day, making it harder to fall asleep. In other words, your sleep-wake cycle thinks it's still daytime, so you can't drop off.And that's where the Auria Glow Lamp, now $49.99 at Amazon, comes in. This dark showering device swaps overstimulating LED bulbs for a soothing amber glow. It's gone viral but does it work? I tested it out to see if the Auria Glow lamp (and dark showering) can help me sleep.Key takeawaysExposure to harsh bathroom lighting before bed has been shown to suppress the production of melatonin, a hormone that signals it's time to sleep.The dark showering trend, however, is said to support melatonin production by replicating the natural conditions at the end of the day.The Auria Lamp is designed to be used while showering, switching your overhead light for a warm amber glow that mimics a sunset.However, while the Auria Glow Lamp is more relaxing than bright LED bulbs, further research is needed on its effectiveness.What is the dark showering trend and how does it improve sleep? Dark showering is pretty self-explanatory; it's when you take shower in the dark.While the dark showering trend originated on (where else?) TikToK late last year, it mirrors time-honored bathing customs from Japan, India, and ancient Rome. And there's a good reason why dark showering traditions have stood the test of time: they really can help you sleep.